[commit: ghc] master: Add a note about Proxy# to the user guide (cb83365)

[git at git.haskell.org]

Repository : ssh://git@git.haskell.org/ghc

On branch  : master
Link       : http://ghc.haskell.org/trac/ghc/changeset/cb83365f174af602e58ea956ce30d516c71e3426/ghc

>---------------------------------------------------------------

commit cb83365f174af602e58ea956ce30d516c71e3426
Author: Edward Kmett <ekmett at gmail.com>
Date:   Fri Sep 27 14:37:26 2013 -0400

    Add a note about Proxy# to the user guide
    
    Signed-off-by: Austin Seipp <austin at well-typed.com>


>---------------------------------------------------------------

cb83365f174af602e58ea956ce30d516c71e3426
 docs/users_guide/7.8.1-notes.xml |    8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/docs/users_guide/7.8.1-notes.xml b/docs/users_guide/7.8.1-notes.xml
index 16e89e9..c3c1211 100644
--- a/docs/users_guide/7.8.1-notes.xml
+++ b/docs/users_guide/7.8.1-notes.xml
@@ -590,6 +590,14 @@
                     There is now a <literal>Data</literal> instance for <literal>Data.Version</literal>
                </para>
            </listitem>
+            <listitem>
+                <para>
+                    A zero-width unboxed poly-kinded <literal>Proxy#</literal>
+                    was added to <literal>GHC.Prim</literal>. It can be used to make it so
+                    that there is no the operational overhead for passing around proxy
+                    arguments to model type application.
+               </para>
+           </listitem>
              <listitem>
                 <para>
                     <literal>Control.Concurrent.MVar</literal> has a new